Incinerator



Jan. 9, 1934. c MAUL 1,943,132

INCINERATOR Filed Oct. 21, 1930 IN VEN TOR A TTORNE Y Patented Jan. 9, 1934 INCINERATOR Henry C. Maul,

Detroit, Mich, Detroit-Michigan Stove assignor to Company, Detroit,

Mich, a corporation of Michigan Application October 21,

6 Claims.

This invention relates to incinerators such as those commonly used for incineration of garbage, refuse and the like, and provided with a grate onto which the refuse is to be dumped and under which are heaters, such as gas heaters, whose products of combustion escape thru fiues provided in such devices.

incinerators as commonly constructed present at least one overwhelming difficulty. When a mass of refuse is dumped upon the grate, the mass containing wet rags, peelings, etc., of high moisture content, the products of combustion find great difiiculty in escaping to the flue. The ordinary process of incineration includes the steps of drying the refuse and then burning it when dry. When the refuse is moist and closely packed the drying is retarded greatly due to the clogging previously described.

Accordingly, an object of the present invention is a means for permitting the escape of the products of combustion thru the mass of refuse and to the hue in a much more efficient manner than has heretofore been the case.

A further object is an article of manufacture which can be disposed in a conventional incinerator to provide a path thru which the prod nets of combustion can escape to the flue regardless of the quantity or quality of the refuse disposed on the grate.

A further object is an article of manufacture which can be so disposed as to create flues thru the mass of refuse leading from the grate to the flue generally provided in such incinerators.

A further object is an incinerator having means therein to facilitate the drying of a mass of refuse therein disposed.

Still further objects will readily occur to those skilled in the art upon reference to the following description and the accompanying drawing in which Fig. 1 shows in section an incinerator provided with an article of the class described.

Fig. 2 is a cut away view of a portion of the same, showing in detail the form of the article of Fig. 1.

Fig. 3 shows in detail still another form of the article.

Referring to the drawing, and more particularly to Fig. 1, there is shown an incinerator including an outer casing 16, an inner casing 12, a bottom 14, and a top wall 16. Projecting thru the outer casing are a plurality of burners 18 above which are supported, on the inner casing 12, a grate 20, the latter having a central portion 22 which is adapted to be rotated by the 1939. Serial No. 490,137

handle 24 connected thereto by the operating shaft 26. I

The top wall 16 is provided with an opening 28 above which is hingedly mounted, at 30, a cover 32, there being provided a handle, not shown, whereby elevation of the cover 32 on its hinge can be effected. Inside the inner casing 12 is a bailie plate 34 having a plurality of perforations 36 resembling perforations 38 in the Wall of the inner casing.

A flue 40 is mounted on the top wall 16, the flue communicating with the space between the inner casing and the outer casing, with the interior of the inner casing, directly and also thru the perforations 38, and also communicating with the space between the baffle plate 34 and the inner casing 12.

Disposed within the inner casing is an article of manufacture which forms an important part of the present invention. One embodiment of this article, disclosed in Figs. 1 and 2, includes a conical element or vessel 46 open at the bottom and having a plurality of perforations 48 in its wall, the open bottom being spaced from the grate central portion 22, a distance of a few inches. The vessel 46 is supported in the casing 12 by a plurality (three) of radial arms 50, these last resting on brackets 52 secured by rivets or bolts to the wall of the casing 12. The arms 50 may be of several desired forms, two of which are shown. They may be round in cross section or inverted V in cross section and if round they should preferably be provided with openings on their under surface. The hollow of the arms 50 is in communication with the interior of the vessel 46, there being suitable perforations provided for this purpose, such as the one shown at 54.

In Fig. 3 the receptacle 56 which is the equivalent of the vessel 46, is shown as cylindrical, it having a skirt portion 58 for a purpose to be described. Further, the arms 60 of the form of Fig. 3 are shown as round in cross section, they having openings at 62, also for a purpose to be described.

The operation of the article of manufacture described may be readily observed from the foregoing. A portion of the products of combustion escape from the grate 20 into the vessel 46 and thru the bars or arms 50 and then to the flue 40 thru the openings at 38, this action taking place no matter what is disposed in the incinerator. Assuming the latter to be full of wet garbage or the like, it will be seen that none of the garbage can fill the vessel 46 and that none of it can clog the hollows in the arms 50. Accordingly, a path leading from the grate 20 to the space between the casings 10 and 12 is always provided.

Another advantage or function of the article of manufacture is its tendency to preheat and dry a portion of the refuse closely thereadjacent, which portion then burns quite rapidly, forming openings and flues thru the mass of refuse, outside of the vessel and the arms 50, these fines or paths serving as auxiliaries for the paths thru the vessel.

A further function of the construction is its operation as a supporting means for some of the refuse. By breaking up the mass into a layer above the arms 50 and small units below, the vessel and arm unit serves to permit the products of combustion to consume the refuse more effectively, thus speeding up the process of incineration.

It will also be observed that the arms 50 are spaced from one another so as not to prevent the passing of a portion of the refuse to the grate, and thence when charred or burnt or partially incinerated and completely dried into the space between the grate and the bottom 14 from where the ash may be removed thru the door shown at 66.

Now having described the invention and the preferred embodiment thereof, it is to be understood that the said invention is to be limited, not to the specific details herein set forth, but only by the scope of the claims which follow.

What I claim is:

1. In an incinerator, a grate, an outer casing, a casing inside said outer casing and spaced therefrom and provided with a plurality of perforations in its wall, a flue in communication with the space between said outer casing and said inner casing and with the interior of the latter, a refuse receiving opening in communication with the interior of said inner casing, and means positioned within said inner casing to lead products of combustion from said grate to the space between said casings, and into proximity with portions of the refuse mass, said means including a hollow vessel supported in said inner casing by hollow arms extending from the vessel to the wall of said inner casing the spaces within the arms being in communication with the interior of the vessel.

2. In an incinerator, a grate, an outer casing, a casing inside said outer casing and spaced therefrom and provided with a plurality of perforations in its wall, a fiue in communication with the space between said outer casing and said inner casing and with the interior of the latter, a refuse receiving opening in communication with the interior of said inner casing and means positioned Within said inner casing to lead products of combustion from said grate to the space between said casings, and into proximity with portions of the refuse mass, said means including a hollow vessel supported in said inner casing, by hollow arms extending from the vessel to the wall of said inner casing, the outer ends of said arms being supported on the wall of said inner casing.

3. In an incinerator, a grate, an outer casing, a casing inside said outer casing and spaced therefrom and provided with a plurality of perforations in its wall, a flue in communication with the space between said outer casing and said inner casing and with the interior of the latter, a refuse receiving opening in communication with the interior of said inner casing, and means positioned within said inner casing to lead products of combustion from said grate to the space between said casings, and into proximity with portions of the refuse mass, said means including a hollow vessel supported in said inner casing, by hollow radial arms extending from the vessel to the wall of said inner casing the spaces within the arms being in communication with the interior of the vessel.

4. In an incinerator, a grate, an outer casing, a casing inside said outer casing and spaced therefrom and provided with a plurality of perforations in its wall, a flue in communication with the space between said outer casing and said inner casing and with the interior of the latter, a refuse receiving opening in communication with the interior of said inner casing, and means positioned within said inner casing to lead products,

of combustion from said grate to the space between said casings, and into proximity with portions of the refuse mass, said means including a hollow vessel supported in said inner casing by arms extending from the vessel to the wall of from and provided with a plurality of perfora-i tions in its wall, a flue in communication with the space between said outer casing and with said inner casing and with the interior of the latter, a refuse receiving opening in communication with the interior of said inner casing, and means positioned within said inner casing to lead products of combustion from said grate to the space between said casings, and into proximity ith portions of the refuse mass, said means including a hollow vessel supported in said inner casing, by arms extending from the vessel to the wall of said said inner casing, said arms being hollow, to provide communication from the interior of said vessel to the wall of said inner casing, the under surfaces of said arms having openings for the escape of the products of com bustion.

6. In an incinerator, a grate, an outer casing, a casing inside said outer casing and spaced therefrom and provided with a plurality of perforations in its wall, a flue in communication with the space between said outer casing and said inner casing and with the interior of the latter, a refuse receiving opening in communication with the interior of said inner casing, and means positioned within 

